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Ensure the IDL (Idle validation) pin on the throttle position sensor is correctly grounded when the butterfly is closed. Final Summary Table (General Reference) Importance +B Main EFI Power BATT Constant 12V E01 / E1 NE+ Crank Signal Engine Start IGT 1-8 Coil Trigger #10-80 Injector Pulse VG MAF Signal Airflow Logic
You have a no-start condition. Your scan tool won't link. Here is the diagnostic workflow using the pinout: 2uzfe ecu pinout
This connector is essential for getting the engine to run inside a different chassis. | Pin No. | Circuit | Function | Notes | | :--- | :--- | :--- | :--- | | | W | Warning Light (Check Engine) | Grounds bulb to turn on | | 8 | AC1 | A/C Amplifier | Signal for A/C request | | 10 | SPD | Vehicle Speed Sensor | Input from cluster/VSS | | 12 | TACH | Tachometer Output | Signal to cluster | | 16 | FC | Fuel Pump Relay | Grounds relay to activate pump | | 17 | NSW | Neutral Start Switch | For starting (Auto Trans) | Ensure the IDL (Idle validation) pin on the
Largest plug, usually grey/black.
Ensure the IDL (Idle validation) pin on the throttle position sensor is correctly grounded when the butterfly is closed. Final Summary Table (General Reference) Importance +B Main EFI Power BATT Constant 12V E01 / E1 NE+ Crank Signal Engine Start IGT 1-8 Coil Trigger #10-80 Injector Pulse VG MAF Signal Airflow Logic
You have a no-start condition. Your scan tool won't link. Here is the diagnostic workflow using the pinout:
This connector is essential for getting the engine to run inside a different chassis. | Pin No. | Circuit | Function | Notes | | :--- | :--- | :--- | :--- | | | W | Warning Light (Check Engine) | Grounds bulb to turn on | | 8 | AC1 | A/C Amplifier | Signal for A/C request | | 10 | SPD | Vehicle Speed Sensor | Input from cluster/VSS | | 12 | TACH | Tachometer Output | Signal to cluster | | 16 | FC | Fuel Pump Relay | Grounds relay to activate pump | | 17 | NSW | Neutral Start Switch | For starting (Auto Trans) |
Largest plug, usually grey/black.